« on: March 02, 2014, 01:37:14 AM »
I use 2 seconds time with mirror lock up. No problem of blur so far though I haven't experienced live view photo yet.
This. Sounds like you don't have mirror lock up enabled. I shot a ton of architectural stuff for a few years and results would suffer if I didn't do mirror lock up and wait a second to two to trigger the shutter after the mirror had settled into position. The tripod in this situation can actually magnify the vibrations of the mirror slap causing slight motion blur in otherwise sharply focused images. The effect lessens with faster shutter speeds or really long shutter speeds. When the shutter is between 1/60th and say a sec or so it's particularly troublesome.
Irregardless of live view, make sure mirror lock up is enabled and that you allow time for the mirror to settle before triggering the exposure.
This seems to nail it.